DNA Repair Mechanisms Quiz
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Questions and Answers

Which process helps cells maintain the integrity of their genetic information?

  • DNA repair (correct)
  • DNA transcription
  • DNA recombination
  • DNA replication

    • Defects in DNA repair genes can lead to what kind of disorders?

  • Genetic disorders (correct)
  • Respiratory disorders
  • Cardiovascular disorders
  • Digestive disorders

    • What can mutations disrupting DNA repair pathways lead to?

  • Enhanced immune response
  • Improved cellular communication
  • Decreased susceptibility to diseases
  • Increased genomic instability (correct)

    • Which mechanism is involved in repairing damage caused by certain cancer treatments?

    <p>Nucleotide Excision Repair (NER)</p> Signup and view all the answers

    How do proper DNA repair mechanisms impact cancer development?

    <p>Minimize the risk of malignant transformation</p> Signup and view all the answers

    Which DNA repair mechanism is responsible for repairing small, non-helix-distorting base lesions?

    <p>Base excision repair (BER)</p> Signup and view all the answers

    What kind of lesions does nucleotide excision repair (NER) primarily repair?

    <p>Bulky helix-distorting lesions</p> Signup and view all the answers

    What does DNA mismatch repair (MMR) help eliminate?

    <p>Base-base insertions and deletions</p> Signup and view all the answers

    Which factor can influence the efficiency of DNA repair mechanisms as individuals age?

    <p>Reduced activity of DNA repair enzymes</p> Signup and view all the answers

    What serves as a template for DNA polymerase during nucleotide excision repair (NER)?

    <p>Short single-stranded DNA segment containing the lesion</p> Signup and view all the answers

    Which lifestyle factor significantly affects the efficiency of DNA repair mechanisms?

    <p>Environmental exposures</p> Signup and view all the answers

    What is the role of DNA repair mechanisms in cell replication and division?

    <p>Maintaining genome stability</p> Signup and view all the answers

    Which environmental factors can cause DNA damage?

    <p>Radiation and chemicals</p> Signup and view all the answers

    What is the link between accumulated DNA damage and aging?

    <p>Accumulated DNA damage is linked to aging</p> Signup and view all the answers

    Which type of repair mechanism is important for maintaining genomic integrity?

    <p>Nucleotide excision repair (NER)</p> Signup and view all the answers

    Unrepaired DNA damage can lead to the development of which disease?

    <p>Cancer</p> Signup and view all the answers

    Which repair mechanism is crucial in preventing cancer development?

    <p>Mismatch repair (MMR)</p> Signup and view all the answers

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